Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
71344193Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 660000
B2 = 13365000
LL
StatusDateUserResidueShift
Verified2015-05-21tomfr51E8AC6F6D64618343263649
Verified2025-01-22-Anonymous-51E8AC6F6D646183894890
History
DateUserTypeResult
2025-01-22-Anonymous-C-LL
51E8AC6F6D646183
2015-05-21tomfrC-LL
51E8AC6F6D646183
2015-03-30megavinkNF
no factor from 2^74 to 2^75
2015-02-15TheJudgerNF-PM1
B1=660000, B2=13365000, E=12
2015-02-08megavinkNF
no factor from 2^73 to 2^74
2014-12-28LingUaanNF
no factor from 2^72 to 2^73
2014-11-17VictordeHollanderNF
no factor from 2^71 to 2^72
2014-05-02HBendtzNF
no factor from 2^70 to 2^71
2012-11-13S00030NF
no factor from 2^69 to 2^70
2010-06-24ekrummeNF
no factor from 2^68 to 2^69
2010-06-20S00030NF
no factor from 2^67 to 2^68
2010-06-19S00030NF
no factor from 2^66 to 2^67
2010-06-18S00030NF
no factor from 2^65 to 2^66
2010-03-19Pi_RhoNF
no factor from 2^64 to 2^65
2008-10-07Wojciech FlorekNF
no factor to 2^64